work on market-data-gateway

docs/execution-services/README.md

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+# Execution Services
+
+Execution services handle trade execution, order management, and broker integrations for the trading platform.
+
+## Services
+
+*Currently in planning phase - no active services deployed*
+
+## Planned Capabilities
+
+### Order Management System (OMS)
+- **Purpose**: Centralized order lifecycle management
+- **Planned Functions**:
+  - Order routing and execution
+  - Order validation and risk checks
+  - Execution quality monitoring
+  - Fill reporting and trade confirmations
+
+### Broker Gateway
+- **Purpose**: Multi-broker connectivity and abstraction
+- **Planned Functions**:
+  - Broker API integration and management
+  - Order routing optimization
+  - Execution venue selection
+  - Trade settlement and clearing
+
+### Portfolio Manager
+- **Purpose**: Position tracking and portfolio management
+- **Planned Functions**:
+  - Real-time position tracking
+  - Portfolio rebalancing
+  - Corporate actions processing
+  - P&L calculation and reporting
+
+## Architecture
+
+Execution services will form the operational core of trade execution, ensuring reliable and efficient order processing while maintaining proper risk controls and compliance requirements.

docs/execution-services/broker-gateway/README.md

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+# Broker Gateway
+
+## Overview
+The Broker Gateway service will provide a unified interface for connecting to multiple broker APIs and trading venues within the stock-bot platform. It will abstract the complexities of different broker systems, providing a standardized way to route orders, receive executions, and manage account information across multiple execution venues.
+
+## Planned Features
+
+### Broker Integration
+- **Multi-broker Support**: Connectivity to multiple brokerage platforms
+- **Unified API**: Standardized interface across different brokers
+- **Credential Management**: Secure handling of broker authentication
+- **Connection Management**: Monitoring and maintenance of broker connections
+- **Error Handling**: Standardized error processing across providers
+
+### Order Routing
+- **Smart Routing**: Intelligent selection of optimal execution venues
+- **Route Optimization**: Cost and execution quality-based routing decisions
+- **Failover Routing**: Automatic rerouting in case of broker issues
+- **Split Orders**: Distribution of large orders across multiple venues
+- **Order Translation**: Mapping platform orders to broker-specific formats
+
+### Account Management
+- **Balance Tracking**: Real-time account balance monitoring
+- **Position Reconciliation**: Verification of position data with brokers
+- **Margin Calculation**: Standardized margin requirement calculation
+- **Account Limits**: Enforcement of account-level trading restrictions
+- **Multi-account Support**: Management of multiple trading accounts
+
+### Market Access
+- **Market Data Proxying**: Standardized access to broker market data
+- **Instrument Coverage**: Management of tradable instrument universe
+- **Trading Hours**: Handling of exchange trading calendars
+- **Fee Structure**: Tracking of broker-specific fee models
+- **Corporate Actions**: Processing of splits, dividends, and other events
+
+## Planned Integration Points
+
+### Upstream Connections
+- Order Management System (for order routing)
+- Risk Guardian (for account risk monitoring)
+- Authentication Service (for user permissions)
+
+### Downstream Connections
+- External Broker APIs (e.g., Alpaca, Interactive Brokers)
+- Market Data Providers
+- Clearing Systems
+
+## Planned Technical Implementation
+
+### Technology Stack
+- **Runtime**: Node.js with TypeScript
+- **Database**: Fast key-value store for state management
+- **Messaging**: Message bus for order events
+- **Authentication**: Secure credential vault
+- **Monitoring**: Real-time connection monitoring
+
+### Architecture Pattern
+- Adapter pattern for broker integrations
+- Circuit breaker for fault tolerance
+- Rate limiting for API compliance
+- Idempotent operations for reliability
+
+## Development Guidelines
+
+### Broker Integration
+- API implementation requirements
+- Authentication methods
+- Error mapping standards
+- Testing requirements
+
+### Performance Considerations
+- Latency expectations
+- Throughput requirements
+- Resource utilization guidelines
+- Connection pooling recommendations
+
+### Reliability Measures
+- Retry strategies
+- Circuit breaker configurations
+- Monitoring requirements
+- Failover procedures
+
+## Implementation Roadmap
+1. Core integration with primary broker (Alpaca)
+2. Order routing and execution tracking
+3. Account management and position reconciliation
+4. Additional broker integrations
+5. Smart routing and optimization features

docs/execution-services/order-management-system/README.md

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+# Order Management System
+
+## Overview
+The Order Management System (OMS) will provide centralized order lifecycle management for the stock-bot platform. It will handle the entire order process from creation through routing, execution, and settlement, ensuring reliable and efficient trade processing while maintaining proper audit trails.
+
+## Planned Features
+
+### Order Lifecycle Management
+- **Order Creation**: Clean API for creating various order types
+- **Order Validation**: Pre-execution validation and risk checks
+- **Order Routing**: Intelligent routing to appropriate brokers/venues
+- **Execution Tracking**: Real-time tracking of order status
+- **Fill Management**: Processing of full and partial fills
+- **Cancellation & Modification**: Handling order changes and cancellations
+
+### Order Types & Algorithms
+- **Market & Limit Orders**: Basic order type handling
+- **Stop & Stop-Limit Orders**: Risk-controlling conditional orders
+- **Time-in-Force Options**: Day, GTC, IOC, FOK implementations
+- **Algorithmic Orders**: TWAP, VWAP, Iceberg, and custom algorithms
+- **Bracket Orders**: OCO (One-Cancels-Other) and other complex orders
+
+### Execution Quality
+- **Best Execution**: Strategies for achieving optimal execution prices
+- **Transaction Cost Analysis**: Measurement and optimization of execution costs
+- **Slippage Monitoring**: Tracking of execution vs. expected prices
+- **Fill Reporting**: Comprehensive reporting on execution quality
+
+### Operational Features
+- **Audit Trail**: Complete history of all order events
+- **Reconciliation**: Matching of orders with executions
+- **Exception Handling**: Management of rejected or failed orders
+- **Compliance Rules**: Implementation of regulatory requirements
+
+## Planned Integration Points
+
+### Upstream Connections
+- Strategy Orchestrator (order requests)
+- Risk Guardian (risk validation)
+- Authentication Services (permission validation)
+
+### Downstream Consumers
+- Broker Gateway (order routing)
+- Portfolio Manager (position impact)
+- Trading Dashboard (order visualization)
+- Data Warehouse (execution analytics)
+
+## Planned Technical Implementation
+
+### Technology Stack
+- **Runtime**: Node.js with TypeScript
+- **Database**: High-performance transactional database
+- **Messaging**: Low-latency message bus for order events
+- **API**: RESTful and WebSocket interfaces
+- **Persistence**: Event sourcing for order history
+
+### Architecture Pattern
+- Event-driven architecture for real-time processing
+- CQRS for optimized read/write operations
+- Microservice decomposition by functionality
+- High availability and fault tolerance design
+
+## Development Guidelines
+
+### Order Management
+- Order state machine definitions
+- Order type specifications
+- Validation rule implementation
+- Exception handling procedures
+
+### Performance Requirements
+- Order throughput expectations
+- Latency budgets by component
+- Scaling approaches
+- Resource utilization guidelines
+
+### Testing Strategy
+- Unit testing requirements
+- Integration testing approach
+- Performance testing methodology
+- Compliance verification procedures
+
+## Implementation Roadmap
+1. Core order types and lifecycle management
+2. Basic routing and execution tracking
+3. Advanced order types and algorithms
+4. Execution quality analytics and optimization
+5. Compliance and regulatory reporting features

docs/execution-services/portfolio-manager/README.md

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+# Portfolio Manager
+
+## Overview
+The Portfolio Manager service will provide comprehensive position tracking, portfolio analysis, and management capabilities for the stock-bot platform. It will maintain the current state of all trading portfolios, calculate performance metrics, and support portfolio-level decision making.
+
+## Planned Features
+
+### Position Management
+- **Real-time Position Tracking**: Accurate tracking of all open positions
+- **Position Reconciliation**: Validation against broker records
+- **Average Price Calculation**: Tracking of position entry prices
+- **Lot Management**: FIFO/LIFO/average cost basis tracking
+- **Multi-currency Support**: Handling positions across different currencies
+
+### Portfolio Analytics
+- **Performance Metrics**: Return calculation (absolute, relative, time-weighted)
+- **Risk Metrics**: Volatility, beta, correlation, VaR calculations
+- **Attribution Analysis**: Performance attribution by sector, strategy, asset class
+- **Scenario Analysis**: What-if analysis for portfolio changes
+- **Benchmark Comparison**: Performance vs. standard benchmarks
+
+### Corporate Action Processing
+- **Dividend Processing**: Impact of cash and stock dividends
+- **Split Adjustments**: Handling of stock splits and reverse splits
+- **Merger & Acquisition Handling**: Position adjustments for M&A events
+- **Rights & Warrants**: Processing of corporate rights events
+- **Spin-offs**: Management of position changes from spin-off events
+
+### Portfolio Construction
+- **Rebalancing Tools**: Portfolio rebalancing against targets
+- **Optimization**: Portfolio optimization for various objectives
+- **Constraint Management**: Enforcement of portfolio constraints
+- **Tax-aware Trading**: Consideration of tax implications
+- **Cash Management**: Handling of cash positions and forecasting
+
+## Planned Integration Points
+
+### Upstream Connections
+- Order Management System (for executed trades)
+- Broker Gateway (for position verification)
+- Market Data Gateway (for pricing)
+- Strategy Orchestrator (for allocation decisions)
+
+### Downstream Consumers
+- Risk Guardian (for portfolio risk assessment)
+- Trading Dashboard (for portfolio visualization)
+- Reporting System (for performance reporting)
+- Tax Reporting (for tax calculations)
+
+## Planned Technical Implementation
+
+### Technology Stack
+- **Runtime**: Node.js with TypeScript
+- **Database**: Fast database with transaction support
+- **Calculation Engine**: Optimized financial calculation libraries
+- **API**: RESTful interface with WebSocket updates
+- **Caching**: In-memory position cache for performance
+
+### Architecture Pattern
+- Event sourcing for position history
+- CQRS for optimized read/write operations
+- Eventual consistency for distributed state
+- Snapshotting for performance optimization
+
+## Development Guidelines
+
+### Position Calculations
+- Cost basis methodologies
+- Corporate action handling
+- FX conversion approaches
+- Performance calculation standards
+
+### Data Consistency
+- Reconciliation procedures
+- Error detection and correction
+- Data validation requirements
+- Audit trail requirements
+
+### Performance Optimization
+- Caching strategies
+- Calculation optimization
+- Query patterns
+- Batch processing approaches
+
+## Implementation Roadmap
+1. Basic position tracking and P&L calculation
+2. Portfolio analytics and performance metrics
+3. Corporate action processing
+4. Advanced portfolio construction tools
+5. Tax and regulatory reporting features